/*

     File: APLCustomURLViewController.m

 Abstract: View controller to handle displaying, editing, parsing, and AirDropping a URL with a custom scheme.

  Version: 1.0

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 */

#import "APLCustomURLViewController.h"

#import "APLCustomURLContainer.h"

#import "APLUtilities.h"

#import "APLAppDelegate.h"

@interface APLCustomURLViewController ()

@property (strong, nonatomic) UIPopoverController *activityPopover;

@property (weak, nonatomic) IBOutlet UIToolbar *toolbar;

@property (weak, nonatomic) IBOutlet UIBarButtonItem *shareItem;

@property (weak, nonatomic) IBOutlet UITextField *customURLTextField;

@end

@implementation APLCustomURLViewController

- (void)viewDidLoad

{

    [super viewDidLoad];

    //Load custom url

    NSURL *customURL = [APLUtilities loadCustomURL];

    if (!customURL) {

        customURL = [[NSURL alloc] initWithString:@"adcs://test/one/two?key1=value1"];

    }

    self.customURLContainer = [[APLCustomURLContainer alloc] initWithURL:customURL];

    //Fill textfield with URL

    self.customURLTextField.text = [self stringFromURLWithoutScheme:self.customURLContainer.url];

}

- (void)viewWillAppear:(BOOL)animated

{

    //Register for notifications about received content

    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(reloadURL) name:SavedCustomURLNotification object:nil];

    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(saveWindowWillAppear) name:DisplayingSaveWindowNotification object:nil];

}

- (void)viewWillDisappear:(BOOL)animated

{

    [[NSNotificationCenter defaultCenter] removeObserver:self name:SavedCustomURLNotification object:nil];

    [[NSNotificationCenter defaultCenter] removeObserver:self name:DisplayingSaveWindowNotification object:nil];

}

#pragma mark - Actions

- (IBAction)openActivitySheet:(id)sender

{

    //Create an activity view controller with the url container as its activity item. APLCustomURLContainer conforms to the UIActivityItemSource protocol.

    UIActivityViewController *activityViewController = [[UIActivityViewController alloc] initWithActivityItems:@[self.customURLContainer] applicationActivities:nil];

    if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone) {

        //iPhone, present activity view controller as is

        [self presentViewController:activityViewController animated:YES completion:nil];

    }

    else

    {

        //iPad, present the view controller inside a popover

        if (![self.activityPopover isPopoverVisible]) {

            self.activityPopover = [[UIPopoverController alloc] initWithContentViewController:activityViewController];

            [self.activityPopover presentPopoverFromBarButtonItem:self.shareItem permittedArrowDirections:UIPopoverArrowDirectionAny animated:YES];

        }

        else

        {

            //Dismiss if the button is tapped while pop over is visible

            [self.activityPopover dismissPopoverAnimated:YES];

        }

    }

}

- (void)saveWindowWillAppear

{

    [self.customURLTextField resignFirstResponder];

}

- (void)reloadURL

{

    NSURL *customURL = [APLUtilities loadCustomURL];

    if (customURL) {

        self.customURLContainer.url = customURL;

        self.customURLTextField.text = [self stringFromURLWithoutScheme:customURL];

    }

}

#pragma mark - UITextFieldDelegate

- (BOOL)textFieldShouldReturn:(UITextField *)textField

{

    [textField resignFirstResponder];

    return YES;

}

- (void)textFieldDidEndEditing:(UITextField *)textField

{

    //Handle updates to the URL

    if (![textField.text isEqualToString:[self stringFromURLWithoutScheme:self.customURLContainer.url]]) {

        NSString *urlString = [NSString stringWithFormat:@"%@://%@", kCustomScheme, textField.text];

        self.customURLContainer.url = [NSURL URLWithString:urlString];

        [APLUtilities saveCustomURL:self.customURLContainer.url];

    }

}

#pragma mark - Convenience Methods

- (NSString *)stringFromURLWithoutScheme:(NSURL *)url

{

    NSString *scheme = [[url scheme] stringByAppendingString:@"://"];

    return [[url absoluteString] substringFromIndex:[scheme length]];

}

@end